Levolor Lorentzen, Inc.
31Patents
0Active
31Granted
34Portfolio score
Filing activity: Dec 22, 1977 → Dec 21, 1988
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5103702A | Method of cutting slats for a venetian blind | Emerging Cross-Sectional Technologies | 68 | Expired |
| US4639987A | Apparatus for producing simultaneously a plurality of Venetian blinds | Emerging Cross-Sectional Technologies | 48 | Expired |
| US4487243A | Venetian blind | Fixed Constructions | 47 | Expired |
| US4262728A | Vertical blind | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4214622A | Vertical blind | Fixed Constructions | 38 | Expired |
| US4621673A | Venetian blind | Fixed Constructions | 37 | Expired |
| US4386644A | Vertical blind tilt control | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4739816A | Venetian blind system for greenhouses | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4363082A | Panel ceiling and light fixture | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US4328653A | Ceiling panel clip | Fixed Constructions | 21 | Expired |
| US4607818A | Installation bracket for venetian blind head rail | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4336834A | Venetian blind | Fixed Constructions | 14 | Expired |
| US4341254A | Frame for a venetian blind | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4722383A | Cord lock for venetian blinds | Fixed Constructions | 14 | Expired |
| US4476909A | Cord lock for a venetian blind lift cord | Fixed Constructions | 14 | Expired |
| US4361996A | Ceiling renovation system | Fixed Constructions | 13 | Expired |
| US4222156A | Holder for supporting a valance at a venetian blind head | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4309858A | Support for ceiling panels | Fixed Constructions | 12 | Expired |
| USD275817S | Venetian blind and shade color sampler packet | General | 10 | Expired |
| US4354300A | Holder for supporting a valance at a Venetian blind head | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4601319A | Installation hardware for venetian blind in a van window frame | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4742860A | Spliced vertical blind head | Fixed Constructions | 7 | Expired |
| US4261408A | Traverse cord lock for vertical blind | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4449344A | Ceiling panel and lens | Fixed Constructions | 5 | Expired |
| US4377232A | Venetian blind color sampler packet | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.